Step:2 -Identity and Access Management(IAM)

Before Creating IAM Role we look back to create a Policy for Creating Role.
To create a policy for an AWS role, you need to define and control which principals can assume the role based on the specified conditions. And after that we need to Add new Role and create a Policy For it. The Steps are listed Below.

Create Policy

1. Search For Identity and Access Management(IAM) (opens in a new tab) and Navigate to the Dashboard Page
2. On the Dashboard Left Panel Find For Policies under Access Management and Click Create Policy
3. Firstly Choose the S3 Service then search and enter PutObject under Action Allowed
4. Under Resources select specific and click Add ARNS.
5. On Popup will open after clicking Add ARNS then enter the bucket name that you created and for object name click the tick box of Any Object Name
6. Then Click Add Arns and navigate to next page
7. Enter Policy name and create policy

Create Role

1. On the Left Navigation Panel, Select Role and move to the page.
2. Click Create Role and now we move to create Role and append above created Policy
3. Leave all the field except Use case field. Under the field Service or use case select API Gateway
4. And then Click Next. Leave the Add Permission page, we append policy for the role Later.
5. Enter Role name and click Create Role

Role has been created now we are going to append policy for the created Role

1. Go To Roles Dashboard and find role by entering the role name that you given while creating. And Open the Role by selecting the role name
2. Under Permission Tab. Choose Create Inline Policy from the Add Permission Dropdown Button. *It means you Create a Policy For the role
3. Select Attach Policy and find the policy that you created before and select on the tick box and click Add Permission

Thats all the policy,role are created and Mapped Together, Next we move to create API Gateway.